In my low key camera room the fill light is one large single light from behind the camera. In my high key camera room the fill light is not only behind the camera but the background lights bounce off the white ceiling and then onto the white floor giving me lots of fill light!!!
I usually spend about 2 to 3 hours per student photographing them and an additional 2 to 3 hours retouching them and enhancing them in Ps. I present a 5 x 7 "proof magazine" to the student which sells for about $200.00 give or take. I sold all but one last year! Then on top of the proof magazine they will order prints for themselves and relatives. My average order is around $700.00 per student.
Benji
This background is a 10 x 20 canvas with a painted "fog" on the floor.